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K2 Power speakers — engineered for superb sound

At Focal, all that matters is music. Focal's sound gurus engage in intensive listening sessions as they design a new line of speakers, making it their mission to create products that deliver uncanny realism, sweeping dynamics, and breathtaking depth. During the hands-on production process, they test every model meticulously to ensure that they meet Focal's exacting standards.

Focal's "Power Hi-Fi" philosophy

The K2 Power 165 KRX3 6-3/4" component speaker system bears the hallmarks of Focal's "Power Hi-Fi" philosophy. The nimble 6-3/4" woofer, made from Aramid and glass fibers, demonstrates the control needed to reproduce delicate classical passages, yet it'll handle the power needed to drive your bass-heavy music with authority. The sturdy zinc-aluminum alloy basket is non-magnetic so it won't interfere with the speaker's own electronics.

3-way design

Focal's 2" inverted dome tweeter acts like a little woofer, dispersing the highs in a wide pattern to create an exceptionally natural soundstage. An additional 3" speaker, made from the same composite that's used in the woofer, provides the system with smooth midrange frequencies. An aluminum phase plug improves midrange dispersion so you'll hear clean, up-front vocals. Focal includes a pair of surface-mount pods that allow you to install the midrange driver and tweeter side by side.

High-quality crossover network

The K2 Power crossover uses hand-made components developed by Focal to deliver an ideal blend of the highs, mids, and lows for a dynamic stereo image. You'll find 162 possible combinations of tweeter, midrange, and woofer settings so you can fine tune the sound to your car's environment.

Important Note: Focal strongly recommends using a 4-channel amplifier to drive the 165KRX3 component system — two channels for the woofers and two channels to run the mids and highs. The 165KRX3 crossover can be set up to use a 2-channel amplifier, but it would present a load of less than one ohm per channel which most amps cannot handle safely.

Note: This component speaker set consists of a separate woofer, midrange speaker, and tweeter. Our Car Selector checks to make sure the woofer will fit in your factory location. You'll have to custom install the midrange and tweeter.

Note: Focal describes this model as a 6-1/2" speaker. Most manufacturers designate this same frame size as a 6-3/4" speaker. For simplicity's sake we list it as a 6-3/4" speaker.

Why install component speakers?

A component speaker system gives you the best possible performance from your car audio system. A system consists of separate woofers, tweeters, and crossovers, each designed to cover one specific range of frequencies. As separate components, the woofer can move freely to deliver more powerful performance, while the tweeter can be custom-mounted in a better spot up closer to your ears, revealing a whole new world of detail. Separate crossovers are far superior to the simple filters wired into full-range speakers, so the components work together for smoother, more focused sound.

Product Research

Woofer

K2 Cone: The woofer cone is a sandwich composite consisting
of a foam core, a structural glass fiber bottom layer, and a Kevlar top layer.
This combination of materials results in a rigid, light weight cone with excellent
damping characteristics.

Surround: The butyl rubber surround is resistant to ultraviolet
rays, temperature extremes, and humidity to add to the speaker's reliability and
longevity.

Zamak Basket: The woofer features a cast Zamak basket. Zamak
is a rigid alloy of Zinc, Aluminum, Magnesium, and Copper. Zamak is non-magnetic.

Midrange

K2 Cone: The midrange cone is a sandwich composite consisting
of a foam core, a structural glass fiber bottom layer, and a Kevlar top layer.
This combination of materials results in a rigid, light weight cone with excellent
damping characteristics.

Zamak Basket: The midrange features a cast Zamak basket. Zamak
is a rigid alloy of Zinc, Aluminum, Magnesium, and Copper. Zamak is non-magnetic.

Phase Plug: The bullet-shaped aluminum phase plug in the
center of the midrange ensures a smooth, flat off-axis frequency response by
preventing the high frequency sound waves emanating from one side of the cone
from interfering with sound waves from the other side of the cone.

Neodymium Magnets: The midrange drivers use Neodymium magnets,
which have the same magnetic flux power as a ceramic magnet 10 times their size,
reducing the size and weight of the speaker.

Size: The midrange drivers are not a standard size, approximately
3" diameter. It can be top or bottom mounted and has these dimensions:

Depth (top mount): 1.4"

Mounting height: 0.2"

Flange height: 0.2"

Depth (bottom mount): 1.6"

Tweeter protrusion: 0" (zero)

Cutout diameter: 2.87"

Frame diameter: 3.47"

Tweeter

Inverted Dome Tweeter: The TN53K tweeter is an Aramid fiber
inverted
dome, producing a broad sound stage. The tweeter has a Neodymium magnet to
provide a powerful magnetic field for the voice coil, while still maintaining
the tweeter's compact dimensions. The dispersion is controlled by the twin
radius wave guides to improve staging and directivity.

Mounting Options: The tweeter can be surface or flush mounted.
Focal recommends flush mounting and the flush mount cup is built onto the tweeter
housing. The included angled cup allows surface mounting at approximately 30°.

Tweeter/Midrange Mounting: Two surface mounting pods are included with
the 165 KRX3 that hold a midrange and tweeter. The pods' dimensions are 6.856"
x 4.114" x 3.123" (height above mounting surface).

Crossover

Components: Focal uses audiophile grade polypropylene
capacitors and air core inductors to ensure high definition and a dynamic
sound quality. There are five switches on the crossovers to adjust crossover
points and output levels, offering a total of 162 different settings.

Bi-amp: The new crossovers included with the 165 KRX3 have
bi-amp inputs, one input for the midrange/tweeter combination and one for the
woofer. When using only two amplifier channels the crossover inputs are shorted
together. Focal recommends using four amplifier channels to bi-amp the speakers
for the improved dynamic range and to present an easier load for the amp(s) to
drive.

Tweeter Adjustment: You can adjust the overall output level
of the tweeter on the crossover; set to -6 dB, -3 dB, or 0 dB. Another switch
allows you to emphasize the extreme (high) treble frequencies.

Midrange Level: The midrange output is also adjustable; set
to -6 dB, -3 dB, or 0 dB. When the mids are installed low in the door, some of
the output is absorbed by the upholstery and they can benefit from a higher
output setting.

Crossover Points: There are three crossover frequency
options for both the woofer (low-pass) and midrange (high-pass) outputs; the
exact crossover points are not given. The upper frequency limit of the midrange
output is not adjustable.

Wiring: The inputs and outputs are screw terminals; they
will accept bare wire or spade connectors up to 0.315" wide.

Dimensions

Tweeters:

Flush Mount

Angled Surface Mount

Mounting Height

0.294"

2.280"

Depth

0.769"

0.548" (screw depth)

Frame
Diameter

2.260"

2.504" x 4.097"

Cutout
Diameter

1.984"

N/A

Crossover:

Width: 7.897"

Height: 1.624"

Depth: 5.133"

Our Product Research Team

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find elsewhere. That's because we have our own in-house Product Research
team. They verify what’s in the box, check the owner's manual, and record
dimensions, features and specs. We stay on top of new products and technologies
to help people make informed choices.

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I'm truly speechless!

Written By F.A, on Thursday, February 26, 2015

I have a 2002 W210 Mercedes E55 AMG I upgraded from Focal 165 V15 components, it was good, but not great, the sound wasn't natural and the tweeters were very harsh even at -3db. **My system consists of FOCAL products only-except the Sub. I have the KRX3 powered by Focal FPS4160 and two High-caps. The sound is absolutely beautiful, I have not heard anything like this before. The highs are very alive, yet very subtle and soft, no matter how loud you increase the volume, the highs will still sound smooth!. Vocals are very natural and warm, sometimes I listen for the sake of beautiful vocals- no music - Yes, it's that good! I'm amazed by how loud the 3" midrange can get, reminded me of concerts. The mid-bass rides smoothly over the low-bass from the Subwoofer, you can hear the bass, but you can't notice it's precise location. The stage and imaging is very wide to the point where I didn't need rear-fill anymore, I installed the mids in the dash, tweeters behind the mirror factory location, and the mid-bass in the doors. *Piece of advice* --- since I'm using the passive crossovers, this set generates a load of 0.8-1 ohm. Make sure you use a high quality Amp. AFAIK class-D amps won't be able to play it, a high quality AB amp would be able to. Another thing is, this set is very very picky with the quality of music files. MP3 will sound like ** compared to lossless. It's a perfect set. Best decision. No regrets. Good luck

Cons:1- the crossovers picked up Alternator noise from the fuel pump and sender unit. I had to relocate the crossovers and the noise went away. It was mounted against the back seat and the fuel tank on a wooden piece.
2- It needs a lot of work, and wiring.
If you want to fully appreciate this set, you should start with a clean install. It will expose all the flaws in your build. You need high quality wiring, RCAs, and deadening.

focal k2 165 krx3

very detailed and high quality. the mids and highs are the best I have ever heard. I have had many competiton systems over my 25 years of an addict . Many of my other systems have been installed and tuned by the best shops in my area, and myself. The install was so easy due to the pods. The pods give you the opportunity to place them and listen before final install. This option will allow any begginer to be a real expert at balancing their range... I am again hearing awesome nuances in music and cant get out of my car in my driveway until the song is over. My wife finally agreed that there is a difference thats worth it$$$